1971's Little Murders is one of my favorite films. It's a very dark comedy written by cartoonist Jules Feiffer and directed by Alan Arkin. It stars Elliot Gould and Marcia Rodd and has a hilarious show stealing cameo by Donald Sutherland as an extremely non-judgemental preacher who Gould's character has hired to preside at his wedding. The DVD, which for some reason I never got around to buying, used to be available cheap but went out of print several years back. I'm sure it's out there on the internet for those who are curious. It's a great film and highly recommended.